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Now · 5:16 PM

Greenlawn Weather & Hourly Forecast

United States · New York · 11740

Overcast
66°F
Overcast
Feels like: 57°F
💧 Humidity 59% 🌡 Pressure 30.30 inHg 💨 Wind 15 mph 👁 Visibility 27.1 mi Clouds 100% ☀️ UV index 0.8 · Low 🌅 Sunrise 6:39 AM 🌇 Sunset 6:52 PM

Hourly Forecast for Greenlawn

Today
Overcast · 6:00 PM Overcast
65° 💧 None 💨 15 mph H 59%30.30 inHg
Overcast night · 9:00 PM Overcast night
62° 💧 0.000 in 💨 16 mph H 64%30.36 inHg
Tomorrow
Mostly cloudy night · 12:00 AM Mostly cloudy night
59° 💧 None 💨 17 mph H 66%30.39 inHg
Overcast night · 3:00 AM Overcast night
58° 💧 None 💨 18 mph H 72%30.36 inHg
Overcast night · 6:00 AM Overcast night
58° 💧 None 💨 19 mph H 76%30.39 inHg
Overcast · 9:00 AM Overcast
60° 💧 0.014 in 💨 21 mph H 73%30.42 inHg
Mostly cloudy · 12:00 PM Mostly cloudy
63° 💧 0.002 in 💨 20 mph H 63%30.45 inHg
Mostly sunny · 3:00 PM Mostly sunny
65° 💧 None 💨 19 mph H 54%30.42 inHg
Mostly sunny · 6:00 PM Mostly sunny
64° 💧 None 💨 19 mph H 56%30.42 inHg
Mostly clear night · 9:00 PM Mostly clear night
59° 💧 None 💨 19 mph H 67%30.45 inHg
Thursday
Mostly clear night · 12:00 AM Mostly clear night
57° 💧 None 💨 18 mph H 70%30.42 inHg
Overcast night · 3:00 AM Overcast night
57° 💧 None 💨 18 mph H 77%30.39 inHg
Overcast night · 6:00 AM Overcast night
56° 💧 None 💨 18 mph H 81%30.39 inHg
Mostly cloudy · 9:00 AM Mostly cloudy
57° 💧 0.013 in 💨 18 mph H 79%30.39 inHg
Overcast · 12:00 PM Overcast
61° 💧 0.004 in 💨 18 mph H 64%30.39 inHg
Overcast · 3:00 PM Overcast
65° 💧 None 💨 15 mph H 52%30.30 inHg

In Greenlawn and, more broadly, across the state of New York: This morning, the sky is mostly cloudy with temperatures starting off in the mid-50s. It will remain cool through the day, with highs reaching the upper 50s to low 60s. Conditions are expected to stay dry, so no rain is forecast. Winds will be light from the northeast, generally around 8 mph, with occasional gusts up to 18 mph. In the afternoon, the clouds may persist, but overall, it should stay dry and relatively calm. Temperatures will remain cool, making it a good day to dress in layers if you're heading outside. No significant weather impacts are anticipated, and conditions will be fairly stable throughout the day.

15-Day Weather Outlook for Greenlawn

TomorrowTomorrow Partly cloudy Partly cloudy 65°/58° 💧 None 💨 20 mph
Thursday, Sep 24Thu Sep 24 Mostly cloudy Mostly cloudy 65°/55° 💧 None 💨 19 mph
Friday, Sep 25Fri Sep 25 Partly cloudy Partly cloudy 69°/55° 💧 0.025 in 💨 13 mph
Saturday, Sep 26Sat Sep 26 Light rain Light rain 64°/62° 💧 0.191 in 💨 23 mph
Sunday, Sep 27Sun Sep 27 Heavy rain Heavy rain 64°/59° 💧 0.416 in 💨 23 mph
Monday, Sep 28Mon Sep 28 Light rain Light rain 65°/59° 💧 2.130 in 💨 16 mph
Tuesday, Sep 29Tue Sep 29 Light rain Light rain 64°/61° 💧 0.154 in 💨 13 mph
Wednesday, Sep 30Wed Sep 30 Overcast Overcast 71°/60° 💧 0.024 in 💨 10 mph
Thursday, Oct 1Thu Oct 1 Mostly sunny Mostly sunny 75°/59° 💧 None 💨 4 mph
Friday, Oct 2Fri Oct 2 Mostly sunny Mostly sunny 73°/62° 💧 0.005 in 💨 4 mph
Saturday, Oct 3Sat Oct 3 Mostly sunny Mostly sunny 72°/63° 💧 0.002 in 💨 7 mph
Sunday, Oct 4Sun Oct 4 Sunny Sunny 70°/63° 💧 None 💨 8 mph
Monday, Oct 5Mon Oct 5 Moderate rain Moderate rain 68°/65° 💧 0.127 in 💨 10 mph
Tuesday, Oct 6Tue Oct 6 Overcast Overcast 69°/56° 💧 0.001 in 💨 9 mph
Wednesday, Oct 7Wed Oct 7 Overcast Overcast 61°/61° 💧 None 💨 6 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Greenlawn

Vertical axis: °F · Color based on temperature
Overcast at 6:00 PM
65° Today 6:00 PM
Overcast night at 7:00 PM
64° 7:00 PM
Mostly cloudy night at 8:00 PM
63° 8:00 PM
Overcast night at 9:00 PM
62° 9:00 PM
Overcast night at 10:00 PM
61° Today 10:00 PM
Overcast night at 11:00 PM
60° 11:00 PM
Mostly cloudy night at 12:00 AM
59° 12:00 AM
Mostly cloudy night at 1:00 AM
59° 1:00 AM
Overcast night at 2:00 AM
58° Tomorrow 2:00 AM
Overcast night at 3:00 AM
58° 3:00 AM
Overcast night at 4:00 AM
58° 4:00 AM
Overcast night at 5:00 AM
58° 5:00 AM
Overcast night at 6:00 AM
58° Tomorrow 6:00 AM
Overcast at 7:00 AM
59° 7:00 AM
Mostly cloudy at 8:00 AM
59° 8:00 AM
Overcast at 9:00 AM
60° 9:00 AM
Light rain at 10:00 AM
61° Tomorrow 10:00 AM
Light rain at 11:00 AM
62° 11:00 AM
Mostly cloudy at 12:00 PM
63° 12:00 PM
Mostly cloudy at 1:00 PM
64° 1:00 PM
Partly cloudy at 2:00 PM
65° Tomorrow 2:00 PM
Mostly sunny at 3:00 PM
65° 3:00 PM
Partly cloudy at 4:00 PM
65° 4:00 PM
Mostly cloudy at 5:00 PM
65° 5:00 PM
Mostly sunny at 6:00 PM
64° Tomorrow 6:00 PM
Partly cloudy night at 7:00 PM
62° 7:00 PM
Mostly clear night at 8:00 PM
61° 8:00 PM
Mostly clear night at 9:00 PM
59° 9:00 PM
Partly cloudy night at 10:00 PM
58° Tomorrow 10:00 PM
Mostly clear night at 11:00 PM
58° 11:00 PM
Mostly clear night at 12:00 AM
57° 12:00 AM
Mostly clear night at 1:00 AM
57° 1:00 AM
Overcast night at 2:00 AM
57° Thursday 2:00 AM
Overcast night at 3:00 AM
57° 3:00 AM
Overcast night at 4:00 AM
56° 4:00 AM
Overcast night at 5:00 AM
56° 5:00 AM
Overcast night at 6:00 AM
56° Thursday 6:00 AM
Mostly cloudy at 7:00 AM
56° 7:00 AM
Mostly cloudy at 8:00 AM
56° 8:00 AM
Mostly cloudy at 9:00 AM
57° 9:00 AM
Light rain at 10:00 AM
58° Thursday 10:00 AM
Light rain at 11:00 AM
59° 11:00 AM
Overcast at 12:00 PM
61° 12:00 PM
Overcast at 1:00 PM
62° 1:00 PM
Overcast at 2:00 PM
64° Thursday 2:00 PM
Overcast at 3:00 PM
65° 3:00 PM
Overcast at 4:00 PM
65° 4:00 PM
Overcast at 5:00 PM
65° 5:00 PM
Overcast at 6:00 PM
64° Thursday 6:00 PM
Overcast night at 7:00 PM
63° 7:00 PM
Overcast night at 8:00 PM
62° 8:00 PM
Overcast night at 9:00 PM
60° 9:00 PM
Overcast night at 10:00 PM
59° Thursday 10:00 PM
Overcast night at 11:00 PM
58° 11:00 PM
Overcast night at 12:00 AM
58° 12:00 AM
Overcast night at 1:00 AM
57° 1:00 AM
Overcast night at 2:00 AM
57° Friday 2:00 AM
Partly cloudy night at 3:00 AM
57° 3:00 AM
Mostly clear night at 4:00 AM
57° 4:00 AM
Mostly cloudy night at 5:00 AM
56° 5:00 AM
Overcast night at 6:00 AM
56° Friday 6:00 AM
Overcast at 7:00 AM
57° 7:00 AM
Overcast at 8:00 AM
57° 8:00 AM
Mostly cloudy at 11:00 AM
62° 11:00 AM
Overcast at 2:00 PM
65° Friday 2:00 PM
Overcast at 5:00 PM
66° 5:00 PM
Overcast night at 8:00 PM
63° 8:00 PM
Overcast night at 11:00 PM
63° 11:00 PM
Overcast night at 2:00 AM
63° Saturday 2:00 AM
Light rain at 5:00 AM
60° 5:00 AM
Light rain at 8:00 AM
60° 8:00 AM
Overcast at 11:00 AM
59° 11:00 AM
Mostly cloudy at 2:00 PM
61° Saturday 2:00 PM
Moderate rain at 5:00 PM
58° 5:00 PM
Overcast night at 8:00 PM
57° 8:00 PM
Moderate rain at 11:00 PM
56° 11:00 PM
Moderate rain at 2:00 AM
57° Sunday 2:00 AM
Moderate rain at 5:00 AM
57° 5:00 AM
Light rain at 8:00 AM
60° 8:00 AM
Light rain at 11:00 AM
64° 11:00 AM
Light rain at 2:00 PM
70° Sunday 2:00 PM
Light rain at 5:00 PM
66° 5:00 PM
Overcast night at 8:00 PM
63° 8:00 PM
Light rain at 11:00 PM
62° 11:00 PM
Overcast night at 2:00 AM
61° Monday 2:00 AM
Overcast night at 5:00 AM
61° 5:00 AM
Mostly cloudy at 8:00 AM
61° 8:00 AM
Overcast at 2:00 PM
68° 2:00 PM
Mostly clear night at 8:00 PM
66° Monday 8:00 PM
Clear night at 2:00 AM
63° 2:00 AM
Partly cloudy at 8:00 AM
62° 8:00 AM
Overcast at 2:00 PM
71° 2:00 PM
Mostly cloudy night at 8:00 PM
66° Tuesday 8:00 PM
Mostly cloudy night at 2:00 AM
64° 2:00 AM
Overcast at 8:00 AM
63° 8:00 AM
Mostly sunny at 2:00 PM
66° 2:00 PM
Clear night at 8:00 PM
61° Wednesday 8:00 PM
Overcast night at 2:00 AM
61° 2:00 AM
Sunny at 8:00 AM
61° 8:00 AM
Sunny at 2:00 PM
67° 2:00 PM
Clear night at 8:00 PM
61° Thursday 8:00 PM
Mostly clear night at 2:00 AM
59° 2:00 AM
Overcast at 8:00 AM
58° 8:00 AM
Mostly sunny at 2:00 PM
66° 2:00 PM
Mostly cloudy night at 8:00 PM
61° Friday 8:00 PM
Overcast night at 2:00 AM
61° 2:00 AM
Overcast at 8:00 AM
65° 8:00 AM
Overcast at 2:00 PM
69° 2:00 PM
Partly cloudy night at 8:00 PM
67° Saturday 8:00 PM
Mostly clear night at 2:00 AM
66° 2:00 AM
Mostly sunny at 8:00 AM
67° 8:00 AM
Heavy rain at 2:00 PM
68° 2:00 PM
Overcast night at 8:00 PM
66° Sunday 8:00 PM
Overcast night at 2:00 AM
66° 2:00 AM
Partly cloudy at 8:00 AM
63° 8:00 AM
Light rain at 2:00 PM
72° 2:00 PM
Clear night at 8:00 PM
64° Monday 8:00 PM
Clear night at 2:00 AM
59° 2:00 AM
Mostly sunny at 8:00 AM
57° 8:00 AM
Light rain at 2:00 PM
65° 2:00 PM
Clear night at 8:00 PM
58° Tuesday 8:00 PM
Clear night at 2:00 AM
55° 2:00 AM
Partly cloudy at 8:00 AM
56° 8:00 AM

AIR QUALITY FORECAST

Air Quality Forecast for Greenlawn

Hourly forecast · Updated every 2 hours
Fair
Nearest forecast value 6:00 PM
PM2.5 Fine particles Good 2,3µg/m³

Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.

PM10 Particulate matter Good 8,1µg/m³

Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.

O₃ Ozone Fair 69,1µg/m³

Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.

NO₂ Nitrogen dioxide Good 1,9µg/m³

A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.

Air quality is acceptable for most people.

UV & HEALTH

UV, Sun & Health Outlook in Greenlawn

Maximum daily UV Today, tomorrow and the following day show the maximum UV index forecast for each day.
0–2 Low 3–5 Moderate 6–7 High 8–10 Very high 11+ Extreme
Today UV 3,7Moderate 🙂Fair
Tomorrow UV 4,3Moderate 🙂Fair
Thursday UV 4,8Moderate 🙂Fair
Friday UV 5,0Moderate 😐Moderate
Saturday UV 3,1Moderate 😐Moderate
Sunday UV 4,0Moderate Unavailable
Monday UV 6,0High Unavailable
Hourly UV index today
6:00 PMUV 0,2 7:00 PMUV 0,0
Today's weather health advice Open today's recommendations.

Moderate UV risk

Sunglasses and sun protection are recommended for prolonged exposure.

Acceptable air quality

Air quality is acceptable for most people. Very sensitive people may want to reduce prolonged exertion.

Comfortable temperature conditions

Temperatures should feel comfortable for most people, with no particular heat or cold precautions needed.

Good conditions for outdoor activities

Outdoor activities can generally be enjoyed normally, with sun protection adjusted to the UV level.

WIND OUTLOOK

Hourly Wind Forecast for Greenlawn

Vertical axis: mph · Horizontal axis: hours
Hourly wind speed Chart of sustained wind and maximum gusts in mph. Today 6:00 PM 7:00 PM 8:00 PM 9:00 PM Today 10:00 PM 11:00 PM 12:00 AM 1:00 AM Tomorrow 2:00 AM 3:00 AM 4:00 AM 5:00 AM Tomorrow 6:00 AM 7:00 AM 8:00 AM 9:00 AM Tomorrow 10:00 AM 11:00 AM 12:00 PM 1:00 PM Tomorrow 2:00 PM 3:00 PM 4:00 PM 5:00 PM Tomorrow 6:00 PM 7:00 PM 8:00 PM 9:00 PM Tomorrow 10:00 PM 11:00 PM 12:00 AM 1:00 AM Thursday 2:00 AM 3:00 AM 4:00 AM 5:00 AM Thursday 6:00 AM 7:00 AM 8:00 AM 9:00 AM Thursday 10:00 AM 11:00 AM 12:00 PM 1:00 PM Thursday 2:00 PM 3:00 PM 4:00 PM 5:00 PM Thursday 6:00 PM 7:00 PM 8:00 PM 9:00 PM Thursday 10:00 PM 11:00 PM 12:00 AM 1:00 AM Friday 2:00 AM 3:00 AM 4:00 AM 5:00 AM Friday 6:00 AM 7:00 AM 8:00 AM 11:00 AM Friday 2:00 PM 5:00 PM 8:00 PM 11:00 PM Saturday 2:00 AM 5:00 AM 8:00 AM 11:00 AM Saturday 2:00 PM 5:00 PM 8:00 PM 11:00 PM Sunday 2:00 AM 5:00 AM 8:00 AM 11:00 AM Sunday 2:00 PM 5:00 PM 8:00 PM 11:00 PM Monday 2:00 AM 5:00 AM 8:00 AM 2:00 PM Monday 8:00 PM 2:00 AM 8:00 AM 2:00 PM Tuesday 8:00 PM 2:00 AM 8:00 AM 2:00 PM Wednesday 8:00 PM 2:00 AM 8:00 AM 2:00 PM Thursday 8:00 PM 2:00 AM 8:00 AM 2:00 PM Friday 8:00 PM 2:00 AM 8:00 AM 2:00 PM Saturday 8:00 PM 2:00 AM 8:00 AM 2:00 PM Sunday 8:00 PM 2:00 AM 8:00 AM 2:00 PM Monday 8:00 PM 2:00 AM 8:00 AM 2:00 PM Tuesday 8:00 PM 2:00 AM 8:00 AM
Sustained wind Max gusts
NIGHT SKY · GREENLAWN, NEW YORK

Tonight's Stargazing & Shooting Stars

Local night-sky conditions and meteor activity for Jasper.

31/100Best-hour score
No good viewing window tonight Astronomical darkness exists, but current sky conditions are unfavorable.
Cloud cover 86% Real hourly forecast for the best viewing hour.
Moonlight 87% Waxing Gibbous · Moon about 27° above the horizon at the best viewing hour.
Meteor activity Southern Taurids Reference ZHR 7 · Radiant 30° high at the best hour.
Estimated visible meteors Poor visibility Meteor activity may occur above the clouds, but local viewing conditions are not suitable.
Chance ≥1 meteor in 30 minNot meaningful
UPCOMING METEOR PERIODSStart, peak and end dates · weather should be checked closer to the peak.
SEP 20–NOV 20
Southern TauridsStart SEP 20 · Peak NOV 5 · End NOV 20 · ZHR 7 · 20% Moon at peak
ACTIVE NOW
OCT 2–NOV 7
OrionidsStart OCT 2 · Peak OCT 21 · End NOV 7 · ZHR 20 · 77% Moon at peak
UPCOMING
OCT 20–DEC 10
Northern TauridsStart OCT 20 · Peak NOV 12 · End DEC 10 · ZHR 5 · 7% Moon at peak
UPCOMING
NOV 6–NOV 30
LeonidsStart NOV 6 · Peak NOV 17 · End NOV 30 · ZHR 15 · 52% Moon at peak
UPCOMING

Experimental local observing estimate. Weather values come from the hourly forecast already used on this page. Moon position and astronomical darkness are calculated locally from time and coordinates. Meteor-shower ZHR describes ideal conditions and is not the number of meteors a person should expect to see locally.

Forecast data for Greenlawn were last refreshed today at 5:16 PM. The current forecast period extends through 24/09/2026 at 3:00 PM. Weather, air-quality and UV-index data are provided through WEATHER-INFO.COM. Forecasts are produced automatically from the latest available data and are subject to periodic technical checks. This service is intended for general weather information.